While ago I dived from 23k to 20k, was going 430mph, 420mph.. 415mph, it seemed like its staying, but then it went below 400, stop to 390mph with wep on.
All that data what I've read about 190a8, states that it goes over 400mph at 20k, around 405-415mph.
More worrying here is that it couldn't even keep close to that speed after dive.
